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20 October 2011 AGE-NC Project No. 96-0236 Page 3 of 7 Based on the nature and extent of the petroleum hydrocarbon impact at the site, hydrogen peroxide application appears to be a moderate to favorable remedial alternative for the site. Several wells at the site are screened through areas of heavily impacted soil, which is "drowned" under the shallow water table. The wells installed at the site could be immediately utilized to apply the mixture in affected areas,effectively stripping and treating hydrocarbon impact to soil and ground water. Utilizing the site well network would forgo additional well installation costs and provides a generally adequate network to treat a significant portion of the residual hydrocarbon impact. 3.1.2. RegenOxT° RegenOxTM" is a patented material distributed by Regenesis of San Clemente, California. The media is an advanced chemical oxidation technology that destroys contaminants through powerful, controlled chemical reactions. RegenOxTM uses a solid alkaline oxidant that employs a sodium percarbonate complex with a multi-part catalytic formula to directly oxidize contaminants. The catalytic component generates a range of highly oxidizing free radicals that help rapidly and effectively destroy a wide range of target contaminants including both petroleum hydrocarbons and chlorinated compounds. Based on the site soil and ground water plume conditions (i.e. shallow ground water and "drowned" adsorbed soil impact), RegenOxTM would be considered to be a low to moderately effective treatment technology for remediation of residual hydrocarbons at the site. Application of RegenOxTM would likely require a modest amount of new borings for injection points and could require several applications/boring advancement events before achieving site cleanup goals, increasing remedial costs and extending the life of the project. For the purposes of expediting cleanup of the residual adsorbed and dissolved hydrocarbon plums at the site, RegenOxTm is not considered to be the most cost- or cleanup-effective technology for the site. 3.1.3. Oxygen Release Compound Advanced ORC-advanced ® media is a patented material distributed by Regenesis Bioremediation Products of San Clemente, California. ORC-advanced ® media is typically applied using direct-injection techniques.This process requires ORC-advanced®media to be mixed with water to form an injectable slurry which is then pressure injected (using a pump) into the zone of contamination.Once in the aquifer,tiny ORC-advanced®media particles can sorb to and/or reside in the soil matrix and produce a controlled release of oxygen for periods of up to 1 year. Adwnced GeoEnvironmenlal,Inc.